754
FNCA52 TJSJ 161930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST FRI OCT 16 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-170800-
SOUTHEAST COASTAL PLAINS-
330 PM AST FRI OCT 16 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 0 20 20 20
TEMP (24H TREND) 74 (-2) 92 (+2) 74 91
RH % (24H TREND) 91 (+5) 48 (-8) 91 54
WIND 20FT/EARLY(MPH) E 12 E 13 E 10 E 11
WIND 20FT/LATE(MPH) NE 9 SE 13 NE 8 SE 12
MIXING HGT(FT-AGL/MSL) 4710 4670
TRANSPORT WND (MPH) E 12 E 9
VENT RATE (KT-FT) 47100 37360
DISPERSION 5 5
DSI 3 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-170800-
SOUTHERN HILLS-
330 PM AST FRI OCT 16 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 30 10 30
TEMP (24H TREND) 70 (-3) 90 (+4) 70 89
RH % (24H TREND) 98 (+5) 58 (-5) 97 60
WIND 20FT/EARLY(MPH) E 10 E 10 E 8 E 8
WIND 20FT/LATE(MPH) NE 10 SE 11 E 6 SE 10
MIXING HGT(FT-AGL/MSL) 5510 5340
TRANSPORT WND (MPH) E 10 E 8
VENT RATE (KT-FT) 49590 37380
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-170800-
NORTH COASTAL PLAINS-
330 PM AST FRI OCT 16 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 20 50 20 40
TEMP (24H TREND) 73 (-3) 91 (+2) 73 90
RH % (24H TREND) 98 (+5) 61 (-2) 96 62
WIND 20FT/EARLY(MPH) E 14 E 11 SE 13 E 8
WIND 20FT/LATE(MPH) SE 10 E 14 SE 6 E 13
MIXING HGT(FT-AGL/MSL) 5140 4630
TRANSPORT WND (MPH) E 10 E 8
VENT RATE (KT-FT) 46260 32410
DISPERSION 5 5
DSI 5 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-170800-
NORTHERN HILLS-
330 PM AST FRI OCT 16 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 0 70 10 70
TEMP (24H TREND) 71 (-2) 91 (+3) 71 89
RH % (24H TREND) 98 (+1) 61 (0) 97 63
WIND 20FT/EARLY(MPH) E 12 E 8 SE 10 E 6
WIND 20FT/LATE(MPH) SE 9 NE 11 LGT/VAR NE 11
MIXING HGT(FT-AGL/MSL) 5870 5370
TRANSPORT WND (MPH) E 6 E 6
VENT RATE (KT-FT) 29350 26850
DISPERSION 5 5
DSI 3 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-170800-
WEST COAST-
330 PM AST FRI OCT 16 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS NONE TSTMS
CHANCE PRECIP (%) 40 50 0 40
TEMP (24H TREND) 71 (-3) 91 (+1) 72 91
RH % (24H TREND) 100 (+5) 61 (+1) 96 63
WIND 20FT/EARLY(MPH) E 11 E 10 E 8 E 8
WIND 20FT/LATE(MPH) E 10 E 11 E 8 E 9
MIXING HGT(FT-AGL/MSL) 4570 4540
TRANSPORT WND (MPH) SE 8 E 6
VENT RATE (KT-FT) 31990 22700
DISPERSION 5 5
DSI 2 6 3 5
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-170800-
EASTERN INTERIOR-
330 PM AST FRI OCT 16 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 30 40 30 50
TEMP (24H TREND) 72 (-3) 91 (+3) 71 90
RH % (24H TREND) 98 (+4) 59 (-3) 97 60
WIND 20FT/EARLY(MPH) E 10 E 11 SE 8 E 6
WIND 20FT/LATE(MPH) E 10 SE 10 SE 8 SE 11
MIXING HGT(FT-AGL/MSL) 6170 5690
TRANSPORT WND (MPH) SE 9 E 8
VENT RATE (KT-FT) 49360 39830
DISPERSION 5 5
DSI 3 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-170800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST FRI OCT 16 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY MCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 40 30 40 50
TEMP (24H TREND) 70 (-3) 88 (+5) 70 86
RH % (24H TREND) 99 (+3) 63 (-6) 99 64
WIND 20FT/EARLY(MPH) E 8 E 9 E 6 E 6
WIND 20FT/LATE(MPH) E 8 SE 9 E 5 SE 9
MIXING HGT(FT-AGL/MSL) 4500 4470
TRANSPORT WND (MPH) SE 10 SE 8
VENT RATE (KT-FT) 40500 31290
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-170800-
CENTRAL MOUNTAIN RANGE-
330 PM AST FRI OCT 16 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS TSTMS
CHANCE PRECIP (%) 0 50 0 70
TEMP (24H TREND) 67 (-4) 87 (+4) 68 87
RH % (24H TREND) 99 (+3) 61 (-5) 98 63
WIND 20FT/EARLY(MPH) E 9 E 8 SE 5 E 5
WIND 20FT/LATE(MPH) E 8 SE 8 SE 5 SE 5
MIXING HGT(FT-AGL/MSL) 6910 5980
TRANSPORT WND (MPH) SE 5 E 6
VENT RATE (KT-FT) 27640 29900
DISPERSION 5 5
DSI 2 6 1 5
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-170800-
CAYEY MOUNTAIN RANGE-
330 PM AST FRI OCT 16 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 40 40 50
TEMP (24H TREND) 70 (-3) 87 (+3) 70 86
RH % (24H TREND) 99 (+3) 62 (-4) 98 63
WIND 20FT/EARLY(MPH) E 8 E 9 E 6 E 6
WIND 20FT/LATE(MPH) E 8 SE 9 E 5 SE 9
MIXING HGT(FT-AGL/MSL) 4950 5150
TRANSPORT WND (MPH) E 10 E 8
VENT RATE (KT-FT) 44550 36050
DISPERSION 5 5
DSI 2 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-170800-
VIEQUES-
330 PM AST FRI OCT 16 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 40 40
TEMP (24H TREND) 78 (-1) 90 (+1) 78 90
RH % (24H TREND) 87 (+2) 58 (-4) 87 58
WIND 20FT/EARLY(MPH) E 13 E 12 E 10 E 9
WIND 20FT/LATE(MPH) E 13 E 10 E 10 SE 8
MIXING HGT(FT-AGL/MSL) 3310 2960
TRANSPORT WND (MPH) SE 10 E 9
VENT RATE (KT-FT) 29790 23680
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-170800-
CULEBRA-
330 PM AST FRI OCT 16 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 40 40
TEMP (24H TREND) 79 (-1) 89 (0) 79 90
RH % (24H TREND) 86 (+1) 60 (-5) 85 60
WIND 20FT/EARLY(MPH) E 13 E 12 E 10 E 9
WIND 20FT/LATE(MPH) E 13 SE 10 E 10 E 9
MIXING HGT(FT-AGL/MSL) 3300 3240
TRANSPORT WND (MPH) E 15 E 10
VENT RATE (KT-FT) 42900 29160
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-170800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST FRI OCT 16 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 20 0 0 10
TEMP (24H TREND) 72 (-4) 91 (+1) 74 91
RH % (24H TREND) 91 (+1) 51 (-6) 94 54
WIND 20FT/EARLY(MPH) E 11 E 14 E 11 E 11
WIND 20FT/LATE(MPH) E 10 SE 16 E 10 SE 12
MIXING HGT(FT-AGL/MSL) 4770 4830
TRANSPORT WND (MPH) E 14 E 10
VENT RATE (KT-FT) 57240 43470
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-170800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST FRI OCT 16 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 40 30
TEMP (24H TREND) 77 (-2) 86 (-1) 77 88
RH % (24H TREND) 88 (+3) 64 (-3) 89 64
WIND 20FT/EARLY(MPH) E 13 E 12 E 11 E 10
WIND 20FT/LATE(MPH) E 12 E 10 E 11 E 9
MIXING HGT(FT-AGL/MSL) 3200 3210
TRANSPORT WND (MPH) E 14 E 12
VENT RATE (KT-FT) 38400 32100
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-170800-
ST CROIX-
330 PM AST FRI OCT 16 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 30 40 40
TEMP (24H TREND) 78 (-1) 89 (+1) 77 89
RH % (24H TREND) 91 (+2) 63 (-3) 92 63
WIND 20FT/EARLY(MPH) E 12 E 11 E 10 E 10
WIND 20FT/LATE(MPH) E 11 E 11 E 10 SE 10
MIXING HGT(FT-AGL/MSL) 4490 4530
TRANSPORT WND (MPH) SE 13 E 12
VENT RATE (KT-FT) 49390 45300
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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